Combined mold-pouring and weighting unit



C. K. PRINCE.

COMBINED MOLD POURING AND WEIGHTING UNIT.

APPLICATION FILED AUG-9 1919.

INVENTOR, Clarence A. fi't'nce,

Patented May 4, I920.

ATTORNEY.

CLARENCE K. PRINCE, OF WESTFIELD, MASSACHUSETTS.

COMBINED MOLD-POURING- AND WEIGI-ITING UNIT.

Specification of Letters Patent.

Patented May 4, 192i) Application filed August t), 1919. Serial No.316,467.

To all whom it may concern j Be it known that I, CLARENCE K. PRINCE, acitizen of the United States of America, residing at WVestfield, in thecounty of Hampden and Commonwealth of Massachusetts, have inventedcertain new and useful Improvements in Combined Mold-Pouring andWeighting Units, of which the following is a specification.

This invention relates to improvements in making metal castings. Anobject of the invention is to provide a device for quickly andeffectively weighting the flask when the same is being poured usuallylocated on a suitable platform. Heretofore it has been the commonpractice, in foundry operations, for the workmen to place, by hand, theusual weights on the flask. These operations are not only slow, but areexpensive. The present invention is designed to overcome theseobjections by providing an apparatus for quickly lowering a weight ontothe flask that can be readily operated by only one workman.

The present invention forms a part of an apparatus that is shown anddescribed in an application filed by me August 9, 1919, Serial No.316,468, for a process of and apparatus for carrying out all of the operations or steps from the point, or place, where the molds are madeuntil the empty molding frames, the cope and nowel, are returned to themolding position. Said apparatus and process comprises in general, anapparatus for molding and transferring said molds or flasks, onto asuitable platform, preferably one composed of rollers; an apparatus forweighting and pouring, an appa rates for dumping the finished castings,and finally returning the empty molds to the molding positions. Thepresent invention has to do with that part of the apparatus whichrelates to the weighting and pouring step when located on the platformhaving rollers.

In general the present invention comprises a suitable support or ifdesired, track-way having depending therefrom'a plate which engages theflask, which plate forms the weight proper; links connected to thisplate, and an operating lever connected to the links, which lever ispivotally supported on the fixed support or track-way whereby theworkman can readily raise and lower the weight onto and from the flask.This plate is provided with an opening which registers with the sprue inthe flask, whereby when the flask is poured the molten metal passesthrough the opening in the plate and into the mold. I

'One of the objects of the present invention is to so construct theweighting plate that one end of the same will engage the flask first andfrom this end the plate is gradually applied to the upper surface of theflask.

With these, and other objects in view,

reference is made to the drawings and ac- I operating handle indifferent positions, its

support and connecting links between the handle and the plate.

Referring to the drawings in detail, 1 designates the roller or otherplatform on which the usual bottom board .2 and its runners 3 areplaced. This platform is of the gravity runway type asshown anddescribed in my coepending application above referred to, Serial No.316,468, filed August 9, 1919. The cope and nowel of the flask areindicated at a and 5, respectively. 6 designates the weight proper whichengages the top or upper edgeof the cope 4-. This weight is formed witha pouring opening 7 which registers with the sprue 8 in the flask.Connected to the ends of the weight 6 are links 9 and 10 by means of thepins 11 and 12; these links are joined together at their upper ends bymeans of the common rod or pin 13 and this pin is connected to the link14 which in turnis connected to the operating lever 15 by means of thepin 16 which is pivotally supported on the supporting structure 17 at18. The operating lever or handle 15 as shown, extends downward withineasy reach of the operator. Any suitable device as a hook 19 is providedfor holding the plate 6 elevated.

It should be stated and noticed that the links 9 and 10 are of equallength, and

forming with the plate 6 an equilateral triangle, whereby when theweighting plate is lowered the end 6, to which the links 9 areconnected, will strike the upper edge of the cope first on account ofthe inclined position of the bottom boardand then as the operating lever15 is raised it allows the weight to gradually settle onto the flask,the pressure will thus be gradually applied to the flask thus forcingout any confined air that may be retained between the plate and theflask. This construction constitutes a pendant device which permits theweighting plate to readily assume an inclined position. The loweredposition of the plate is indicated by the dotted lines 6 in Fig. 2.After the flask is poured the weight is lifted and the flask moved alongthe platform to that part of the apparatus where the flasks are emptied.A new flask is then moved into position under the weighting and pouringapparatus and the same operations repeated.

It is to be understood that the present invention is not in any waylimited to the use of a single weighting and pouring apparatus as shown,but a plurality may, if desired, be placed end to end forming a seriesalong and over the platform 1 whereby several flasks may besimultaneously weighted and poured. It is to be understood that theapparatus is not limited to use with an inclined bottom board as it isequally applicable for use when the bottom board is in a horizontalposition.

What I claim is: 4

1. In a combined apparatus for weighting and pouring flasks, thecombination, of a weighting plate to engage the flask, linksconnected'thereto, and operating device for the links, a bottom boardfor the flask and means for supporting the bottom board and flask on agravity runway.

2. A weight and pouring device for flasks comprising, in combination, aweight proper, means for supporting the same in a pendant manner topermit one end of the weight to engage the flask before the other shouldthe flask be arranged in an inclined position and means for movablysupporting the flasks on a gravity runway during the weighting andpouring operations.

3. A weight and pouring device comprising, in combination, a plateforming the weight proper inclined, links connected thereto, asupporting structure, an operating lever pivotally connected to saidstructure and to said links whereby the plate may be raised and loweredas described.

4:. In a weighting device, .the combination, of a plate having a pouringopening therethrough, a supporting structure, connecting means betweenthe structure and the plate, said means being designed to permit theplate to assume an inclined position.

5. In a combined weight and pouring de vice for flasks, the combination,of a weight mg plate, supporting links therefor connected thereto topermit the plate to engage the flasks at one of its edges first andthengradually engage the whole of its upper sur-.

molders flasks comprising a weighting plate to engage the cope, linkspivotally connected to the plate at their lower ends, their upper endsbeing united by means of a common pin, or the like, to formsubstantially an equilateral triangle which includes the links and theportion of the plate between the lower ends of the links, a single linkcon nected to the common pin and an ope 'ating lever for raising andlowering the .plate connected to the other end of the last named link,whereby the links and plate will have a free or pendant action, saidplate having an opening for pouring the metal into the molds, asdescribed.

7. In a combined apparatus for weighting and pouring flasks in foundryoperations, the combination, of a weighting plate to engage the flasks,means connected to the CLARENCE K. PRINCE.

